KR870001335A

KR870001335A - Cathode system

Info

Publication number: KR870001335A
Application number: KR1019860005941A
Authority: KR
Inventors: 람베르 모리스
Original assignee: 루이-샤를레 루지아노비크; 가즈 데 프랑스
Priority date: 1985-07-23
Filing date: 1986-07-22
Publication date: 1987-03-13
Also published as: NZ216935A; US4713158A; EP0210920B1; FR2589486A1; DE3663040D1; AU582979B2; EP0210920A1; FR2589486B1; AU6042186A; CA1282368C; CN86105112A

Abstract

내용 없음.No content.

Description

Cathode system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 시스템에 포함된 제어 및 조정회로의 블록 다이어그램.1 is a block diagram of a control and adjustment circuit included in a system according to the invention.

제2도는 본 발명이 적용되는 하나위 구조물의 일예를 보인 간략도.Figure 2 is a simplified view showing an example of one structure to which the present invention is applied.

제3도는 본 발명에 따른 제어 및 조정회로의 동작을 나타내는 플로우챠트.3 is a flowchart showing the operation of the control and adjustment circuit according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

60 : 구조물 90 : 전해질60 structure 90 electrolyte

80 : 하부구조물 양극그룹 : A₁-A₁₀ 80: Substructure anode group: A ₁ -A ₁₀

양극 : Aij 70 : 뱅크Anode: Aij 70: Bank

10,20,30 : 제어 및 조정회로 12 : 발전기10,20,30: control and adjustment circuit 12: generator

1,2 : 기준전극 3 : 비교기1,2: reference electrode 3: comparator

4 : 드레스호울드회로 5 : 경보기4: dress holder circuit 5: alarm

40 : 클록 50 : 접점40: clock 50: contact

123 : 변압기 124 : 정류회로123: transformer 124: rectifier circuit

15 : 전류계 13 : 분류기15: ammeter 13: classifier

122 : 모터 14 : 저항122: motor 14: resistance

50 : 릴레이50: relay

Claims

Between at least one cathode constituted by the structure to be protected, at least one group of anodes spaced from the structure and in contact with the electrolyte in which the structure is located, the cathode forming structure and several groups of anodes in contact with the electrolyte A structure located in an electrolyte consisting of at least one generator connected and at least one reference electrode connected to a control and regulation circuit for regulating the potential generated by the generator and subsequently regulating the current applied to the anode A cathode type system for applying a current for a power supply, comprising: means for operating a circuit for periodically controlling and adjusting a generator, means for reading a potential generated by a reference electrode and calculating a potential difference between the protective structure and the read electrode potential; , The upper limit of the calculated potential difference The comparator means for comparing the first reference potential to be a horde value and comparing the calculated potential difference to the second reference potential to be a helical value, and the absolute value of the output voltage generated by the generator is a predetermined value in several stages. Means to increase the absolute value if the calculated potential difference is slightly less than the upper limit dresshold, and to reduce the absolute value if the calculated potential difference becomes more negative than the lower limit dresshold. Cathodic protection system.

2. The apparatus of claim 1, having at least two electrodes connected to control and adjustment means associated with the same generator or group of anodes, wherein the means for reading the reference potential causes the reference electrode to be at maximum negative for each cycle. And a comparison circuit for selecting a maximum negative potential to determine and calculate the calculated potential difference.

3. A cathode system according to claim 2, comprising means for appearing when the difference between the potentials of the reference electrodes exceeds a predetermined value.

3. A cathode system according to claim 1 or 2, wherein the means for periodically operating the electrical control and regulating circuits consist of slow release contacts with seals functionally related to the structure to be protected.

3. A cathode system according to claim 1 or 2, wherein the means for periodically operating the control and regulation circuit of the generator comprises a clock having a cycle frequency applied in the period of electrochemical polarization.

6. A plurality of group P anodes according to any one of claims 1 to 5, which are brought into contact with the electrolyte being thermally cut from the structure distributed over the various areas of the structure to be protected, and the same number as the anodes of the group. And a group of reference electrodes connected to other circuits of the control and regulating circuit for regulating the voltage generated by the generator, which is arranged near the group of anodes and connected to the group of anodes. Means for periodically operating the various control and adjustment circuits, and applying these first and second reference potentials to the respective control and adjustment circuits to make them dress dress values and to calculate the upper and lower limit dress holders. Means for adjusting the value of the output voltage generated by each generator associated with a group of anodes to a predetermined value in several stages as a function of the calculated potential difference value Let the cathodic system.

7. A source according to any one of claims 1 to 6, wherein the reference electrode is a source of saturated electrolyte so as to have a property that remains constant over time regardless of changes in the composition of the electrolyte in which the structure to be protected is located. Cathode protection system made up of electrodes.

The negative electrode system according to claim 7, wherein the cathode is a crystal of a reaction salt that saturates an aqueous solution in which the electrode is an electrolyte power source of the reference electrode, and the saturated aqueous solution is in communication with the external electrolyte medium by a processable filter.

※ Note: The disclosure is based on the initial application.